Formal Proof of an Exact Scale Invariance in the Nambu-Jona-Lasinio Model
Keiichi Akama · arXiv (Cornell University) · 2003
We show that the renormalization group beta functions in the Nambu-Jona-Lasinio model identically vanish in all order due to the compositeness condition. Accordingly the effective coupling constants are entirely fixed and do not run with the renormalization scale.